GM 4L80E transmission

4L80E

Used 1991-up.

Used in GM trucks and SOME Jaguars.

This is a computer controlled overdrive transmission.

Lower front cooler line is the cooler return line. (Note! in 1997 GM moved the return line to the midpoint of the case)

Band adjustments:
Intermediate = not adjustable
Reverse = not adjustable

Gear Ratios:
2.482:1 1st gear
1.482:1 2nd gear
1.00:1 3rd gear
0.75:1 4th gear
2.077:1 reverse

Transmission

(click on picture to enlarge)

Pan gasket

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